/**
 * Revenue Dashboard - Revenue reporting and analytics
 */

import React, { useState, useEffect } from 'react';

export default function RevenueDashboard() {
  const [dateRange, setDateRange] = useState({
    startDate: new Date(new Date().getFullYear(), new Date().getMonth(), 1).toISOString().split('T')[0],
    endDate: new Date().toISOString().split('T')[0],
  });
  const [report, setReport] = useState<any>(null);

  return (
    <div className="revenue-dashboard">
      <header>
        <h1>Revenue Dashboard</h1>
        <div className="controls">
          <input
            type="date"
            value={dateRange.startDate}
            onChange={(e) => setDateRange({ ...dateRange, startDate: (e.target as HTMLInputElement).value })}
          />
          <input
            type="date"
            value={dateRange.endDate}
            onChange={(e) => setDateRange({ ...dateRange, endDate: (e.target as HTMLInputElement).value })}
          />
          <button className="primary">Generate Report</button>
        </div>
      </header>

      {report && (
        <>
          <div className="stats-grid">
            <div className="stat-card">
              <h3>Total Revenue</h3>
              <p className="stat-value">${report.totalRevenue?.amount.toFixed(2)}</p>
            </div>
            <div className="stat-card">
              <h3>Invoiced Revenue</h3>
              <p className="stat-value">${report.invoicedRevenue?.amount.toFixed(2)}</p>
            </div>
            <div className="stat-card success">
              <h3>Paid Revenue</h3>
              <p className="stat-value">${report.paidRevenue?.amount.toFixed(2)}</p>
            </div>
            <div className="stat-card warning">
              <h3>Outstanding Revenue</h3>
              <p className="stat-value">${report.outstandingRevenue?.amount.toFixed(2)}</p>
            </div>
          </div>

          <section className="revenue-chart">
            <h2>Revenue Trend</h2>
            {/* Chart would go here */}
            <div className="chart-placeholder">Revenue chart visualization</div>
          </section>
        </>
      )}

      {!report && (
        <div className="empty-state">Select a date range and generate a report</div>
      )}
    </div>
  );
}
